Title:
SEPARATOR FOR POWER STORAGE DEVICES, AND POWER STORAGE DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/229037
Kind Code:
A1
Abstract:
The present invention provides a separator for power storage devices, the separator comprising a base material 10 which is a polyolefin microporous membrane that contains a polyolefin as a main component, and a cover layer 20 which is arranged on at least one surface of the base material 10. With respect to this separator for power storage devices, the cover layer 20 contains an inorganic filler 1 and a thermoplastic polymer; the thermoplastic polymer forms particulate polymers 2 that protrude from an inorganic filler portion L1; and the coefficient of static friction of the cover layer 20 is 0.40 to 0.60.
Inventors:
MISAWA KAZUSHI (JP)
MACHIDA NAOKI (JP)
MACHIDA NAOKI (JP)
Application Number:
PCT/JP2023/019773
Publication Date:
November 30, 2023
Filing Date:
May 26, 2023
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
H01M50/451; H01G9/02; H01G11/52; H01M50/414; H01M50/417; H01M50/434; H01M50/437; H01M50/44; H01M50/443; H01M50/463; H01M50/489
Domestic Patent References:
| WO2020175079A1 | 2020-09-03 | |||
| WO2020246394A1 | 2020-12-10 | |||
| WO2008062727A1 | 2008-05-29 | |||
| WO2021200049A1 | 2021-10-07 |
Foreign References:
| CN112002865A | 2020-11-27 | |||
| JP2011126275A | 2011-06-30 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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